"Import .OBJ as Collision" may still be in testing. Is this a function that cannot be used with Skyrim?
Cause a crash when loading a mesh with collisions created with this feature in Skyrim.

I tried to set it exactly the same as a working collision, pack TriStrips, recreate a collision mesh for import, and everything else failed.

I guess that bhkNiTriStripsShape itself has a problem.